ALAMEDA, Calif.--(BUSINESS WIRE)--Today, Penumbra, Inc. announced the Shonin approval by the Japanese Ministry of Health, Labor and Welfare of the Penumbra Coil 400 for treatment of intracranial aneurysms. Penumbra, together with its exclusive distribution partner, Medico’s Hirata, Inc., will immediately begin the launch of the device for sale to the Japanese endovascular community.